The time machine and spacecraft used by the Doctor in the British sci-fi television series Doctor Who, which is larger on the inside than its exterior (that of a Britishpolice box) suggests, or any of the conceptually similar time machines used by other members of the Doctor's race, the Time Lords.

1986, Pip & Jane Baker, The Mark of the Rani, chapter 19, page 129:

'While I was in the Rani's TARDIS, I made an adjustment or two.' He chuckled, remembering the occasion.

2000, Fraser A. Sherman, Cyborgs, Santa Claus, and Satan, page 57:

The Master's essence escapes his funeral urn and lands the TARDIS in San Francisco on December 30, 1999.

Alternative form of Tardis(something which resembles the bigger-on-the-inside time machine from the series Doctor Who).

2008, in Astronomy Now, volume 22, issues 7–12, page 36:

This unassuming Georgian terrace house, located within five minutes walk of the busy commercial and tourist heart of Bath in Somerset, is like a veritable TARDIS of astronomical history and discovery, with more to see on the inside than its [exterior suggests].